Socket-wrench.



C.` W.' MGDANIEL.

SOCKET WBBIIOH. APPLICATION rILEn `JUNI: 13, 190s.

Patented May 4, 1909.

umriin srarns rfrnisr ortica.

CHARLES W. MCDANIEL, OF PORTSMOUTH, NEW HAMPSHIRE, ASSIGNOR OF ONE-THIRD TO EDWARD B. COLE, OF THE UNITED STATES MARINE OORlS.

SOCKET-WRENCH.

Specification of Letters Patent. Patented May 4, 1909.

Application filed June 13, 1908. Serial No. 438,363.

17, 17 represents the jaws of the wrench, each jaw having in its inner lace a socket 1S, the two sockets being lormed to engage a To all whom it may concern: l Be it known that 1, Crninrns W. MCDAN- inL, oi' ortsmouth, in the county oi' Rockingham, and State oi' New Hampshire, have olygonal nut, bolt head, or other article to invented certain new and useful lmprovebe rotated by thejaws. Each oi thejaws 17 of which the folis provided with a shank 17', said shanks being iitted to the inner sides ol' the guides 13, and provided with side enlargements which engage grooves in the inner sides o1' the guides, as shown in Figs. 2 and l.

The operating member is o'll cylindrical form, and has on its periphery two screw threads SO, oi' opposite pitch, one being a right and the other a lelt thread. Each ol' the jaws is provided at its inner end with a series ol' rack teeth 19 adapted to engage the threads of the operating member, the rack teeth ol' one jaw being engaged with the right hand thread, while the rack teeth o1' the other jaw are engaged with the lelt hand to be moved simultaneously in opposite dithread. lt will be seen, therefore, that the rections, and to provide suitable means for rotation o1l the member 15 will cause the effecting such movement. jaws to move simultaneously in opposite di- The invention also has for its object to ments in Socket-l/Vrenches, lowing is a speciiication.

This invention relates to a wrench comprising a stock or body having jaw faces at i one end extending lengthwise oi the stock, and forming collectively a socket oi polygonal 'form adapted to grasp a correspondingly formed nut, bolt-head, or other object to be rotated. 5 The invention relates particularly to wrenches o1' this character in which the jaws are adjustable to enable them to grasp polygonal heads, nuts, etc., of different sizes.

The invention has -l'or its object, lirst, to enable the jaws of a wrench oi' this character rections between the guides 13, provision being thus made ior quickly adjusting the provide means lor locking the adjustable jaws at any relative position to which they jaws to the size ol' the article to be engaged may be adjusted. thereby.

the outward endwise movement oil the jaws, 1 provide a stop which is movable into and out ol' the path oil one oi' the jaws, and is adapted to arrest its outward movement when the maximum separation ol the jaws has been attained. rlhe stop is preferably a portion ol' an eccentric head 2() vformed on the pivot bolt 16, the eccentricity ol the head being such that when it is turned to the position shown in Figs. 1, 2 and 3, a portion oll the periphery o'lI the head will extend across the path in which the adjacent The invention also has for its object to j To limit otherwise im rove the construction o1' a socket wrenc with respect to the convenience of assemblage and separation o'l the parts, and in various other respects.

The invention consists in the several improvements which 1 will now proceed to describe and claim.

Oi the accompanying drawings, 'forming a part oi this specificatioin-Figure 1 represents a side elevation oil a socket wrench em bodying my invention. Eig. 2 represents 4.o an edge view of the saine. Fig. 3 represents jaw is movable, and will constitute a stopi'or a section on line 33 o1' 1Eig. 2. l? ig. 4 repsaid jaw. When the bolt is given a partial resents a section on line 4-4 of Fig. 1. rotation vfrom the position shown, the porindicate the tion ol' the head which constitutes the stop is displaced from the path of the adjacent jaw so that it no longer acts as a stop. rovision is thus made ior coniining the jaws against separation vl'roin the stock, and 'l'or permitting the jaws to be removedi'rom the stock.

The same reference characters same parts in all the figures.

1n the drawings, 12 represents the body or stock oi a socket wrench embodying my invention, said stock being elongated in one direction, and having a relatively small ci'oss-section. On one end oi' the stock are formed a pair oi' jaw guides 13, the stock having a transverse opening 14 which extends across the guides, and is adapted to receive a rotary operating member 15, which is secured to the stock, and rotatively supported by means oi' a pivot bolt 16.

1t will be seen that when the bolt head 2O is in position to act as a stop by bearing against the outer side oi the adjacent jaw, and thus limiting its outward movement, the outward movement o1' the other jaw in the opposite direction is prevented by the intermediate operating member 15, the

teeth of which are engaged, as described, with the rack teeth ol" the two jaws.

The bolt head 2O is preferably provided on its inner side with a shoulder 21 which comes to a bearing on a correspondingshoulder' formed on the stock, as shown in Fig. 3, when the bolt head is turned to position `to act as a stop. The pivot bolt 16 has a screwthreaded end portion 23 vengaged with a tapped socket in the stock at one end of the opening 14, the bolt being thus secured to the stock, and provision being made ior causing an endT ise movement of the bolt when it is rotated to bring the shoulder 21 into engagement with `the corresponding shoulder on the stock.

To prevent accidental or unintentional movement of the jaws from any position to which they may be adjusted, I provide a detent adapted to engage the rotary operating member 15, and prevent loose rotation of the same, said detent being the head 24 of a screw 22 which is engaged with a tapped orifice in the stock. When the jaws have been properly adjusted by the rotation of the operating member 15, the detent 24 is adjusted into close contact with the threads of the 'operating member, and serves as a brake or detent to prevent further or loose rotation of the operating member. When the jaws are to be again adjusted,l the detent 24 is removed from contact with the operating member.

rihe end of the stock,

opposite the end which carries the jaws 17,

is formed to detachably engage a carrying or operating member which may be a handle 25, or a suitable bit brace chuck, or any other device adapted to support and permit a rotary movement to be imparted to the stock. As ere shown, the stock is provid-ed with a shank 26 which is squared and tapered, this form adapting it in the present case to tit a squared and tapered pocket in the handle 25, to which the shank is -detachably secured by means of a screw 27. lt is obvious that the handle 25 may be removed and the shank 26 inserted in a suitable chuck or other holding evice.

The detent 24 and the pivot bolt with an eccentric head 2O may be used for confining a single movable jaw instead of two independently movable jaws, The shank of one of the jaws is provided with a guide pin 28 projecting inwardly from the inner iace of the jaw, and entering an oriiice 29 formed for its reception in the shank ol' the other jaw.

claim:

1. A wrench comprising' a stock having jaw guides, opposed jaws movable on said guides, connections between said jaws, having provisions for adjusting the jaws simultaneously in opposite directions, and a single, externally located stop arranged in the path of one of the jaws, and cooperating with said connections in limiting the outward movement of both jaws, said stop being movably engaged with the stock and adapted to be displaced without removal from the stock, to permit the removal of both aws theretrom.

2. A wrench comprising a stock jaw guides, opposed jaws movable on said guides, connections between said jaws having provisions for adjusting the jaws simultaneously in opposite directions, and a bolt rotatably mounted in the head and having an eccentric head, a portion of which constitutes a stop located in the path oi' one of the jaws, said stop being' movable from said path by a partial rotation ot kthe bolt.

3. A socket wrench comprising a stock having jaw guides, opposed socketed jaws movable on said guides, means for adjusting said jaws simultaneously in opposite Vdirections, and a locking member cooperating with said adjusting means for holding the jaws at any desired adjustment.

a. A socket wrench comprising a stock having jaw guides, a rotar operating member mounted in the stock and provided with right and left screw threads, opposed socketed jaws movable on said guides, and provided with rack teeth engaging the threads of the operating member, and an adjustable detent carried by the stock and adapted to engage the said loperating member to prevent its rotation.

5. A socket wrench comprising a stock having jaw guides, a rotary operating member mounted in the stock and provided with right and left screw threads, opposed sock` eted jaws movable on said guides and provided with rack teeth engaging the threads of the operating member, and a screw engaged with a tapped socket in the stock and having `a head adapted to engage the said operating member as a detent to prevent its rotation.

6. A socket wrench comprising a stock having jaw guides, a rotary operating member mounted in the stock and provided with right and lett screw threads, a pivot bolt supporting' said operating member and having' an eccentric head adapted to serve as a stop for one of the jaws, said stop being displaceable by a partial rotation of the bolt to permit the removal of the jaws.

7. A wrench comprising a stock, relatively movable opposed jaws mounted thereon, a rotary screw threaded operating' member mounted in the stock and adapted to vary the distance between the j aws, and an adjustable detent carried by the stock and adapted to engage the said ope 1ating member.

8. A wrench comprising a stock, relatively movable opposed jaws mounted thereon, a rotary screw threaded operating member mounted in the stock and adapted to vary the distance between the jaws, and a screw having i engaged with a tap ed socket in the stock stop for one of the jaws, said stop being disand having ahead a apted to engage the said 'i placeable by a partial rotation of the bolt to operating member as a detent. l permit the removal of said jaw.

9. A wrench comprising a stock, relatively ln testimony whereof I have affixed my movable opposed jaws mounted thereon, a signature, in presence of two witnesses.

rotary screw threaded operating member CHARLES W MCDANFT mounted in the stock and adapted to Vary J' J' the distance between the jaws, a pivot bolt Witnesses:

supporting said operating member and hay- S. T. LADD,

ing an eccentric head adapted to serve as a S. l/V. EME'RY, "r, 

